6540-00-001-0669 LENS,OPHTHALMIC,COMPOUND Index 6540-00-001-0671 LENS,OPHTHALMIC,COMPOUND

National Stock Number:
6540-00-001-0670

Federal Supply Class:
6540

National Item Identification Number:
000010670

Description:
LENS,OPHTHALMIC,COMPOUND

Detail:
A TRANSPARENT OPTICAL ELEMENT HAVING A SPHERICAL CURVE AND A CYLINDRICAL CURVE USED TO CORRECT VISION DEFECTS OF THE EYE.


Manufacturer Information:
MIL33682481349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
P2.00-3.75,CR-39,71 DIA92083HIS VISION INC
P2.00M3.75,6.50BC,71MM,CR-392T804ATLANTA/OLYMPIC OPTICAL CO


Techincal Specification:
BASE CURVE DIOPTER6.50 PLUS NOMINAL
CROSS-SECTIONAL SHAPE STYLESPHEROCYLINDER COMPOUND
CYLINDER CURVE INSIDE DIOPTER3.75 MINUS MAXIMUM
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY DIAMETER
DIAMETER71.0 MILLIMETERS MINIMUM
NONDEFINITIVE SPEC/STD DATA3 STYLE AND B CLASS
LIGHT TRANSMISSIONUNTINTED
MATERIAL AND LOCATIONPLASTIC SINGLE VISION
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS OPHTHALMIC COMPOUND PLASTIC PLUS 2.00 ON MINUS 3.75
SPECIAL FEATURESCROSS CURVE DIOPTER: ANY ACCEPTABLE.
SPHERE CURVE INSIDE DIOPTER2.00 PLUS MAXIMUM
STYLE DESIGNATORROUND
SUPPLEMENTARY FEATURESUNCUT
THICKNESS1.6 MILLIMETERS NOMINAL


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